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Built 2026-10-17 (17 October 2026)

Spirit Lake Weather Records (USC00137859)

Record envelope, standing records and threshold days for Spirit Lake (USC00137859), Iowa, United States, with 134 years of record.

Key Facts for Spirit Lake

  • Spirit Lake (USC00137859) is a weather station in Iowa, United States at 43.42 latitude and -95.14 longitude, 434 m (1,423 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Spirit Lake still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Spirit Lake set a daily record high maximum temperature of 31.1 C (88.0 F) on 12 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Iowa, United States, 43.42 latitude, -95.14 longitude.
  • Elevation: 434 m (1,423 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow.

Daily Record Envelope and 2026

23 days at or beyond a record
Daily record high and record low at Spirit Lake, with 2026 drawn through them The band shows the record high and record low for each calendar day at Spirit Lake. The lines show the 2026 daily maximum and minimum. 23 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Spirit Lake. The lines show the 2026 daily maximum and minimum. 23 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Spirit Lake, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.8 C (64.0 F)-34.4 C (-29.9 F)10.0 C (50.0 F)-27.8 C (-18.0 F)
Feb21.1 C (70.0 F)-39.4 C (-38.9 F)16.1 C (61.0 F)-18.9 C (-2.0 F)
Mar30.0 C (86.0 F)-27.8 C (-18.0 F)30.0 C (86.0 F)-18.9 C (-2.0 F)
Apr34.4 C (93.9 F)-15.0 C (5.0 F)30.0 C (86.0 F)-6.7 C (19.9 F)
May37.8 C (100.0 F)-3.3 C (26.1 F)32.8 C (91.0 F)1.7 C (35.1 F)
Jun39.4 C (102.9 F)0.6 C (33.1 F)33.9 C (93.0 F)10.0 C (50.0 F)
Jul42.8 C (109.0 F)4.4 C (39.9 F)35.0 C (95.0 F)11.7 C (53.1 F)
Aug40.0 C (104.0 F)4.4 C (39.9 F)32.2 C (90.0 F)10.6 C (51.1 F)
Sep38.3 C (100.9 F)-6.1 C (21.0 F)33.3 C (91.9 F)9.4 C (48.9 F)
Oct35.0 C (95.0 F)-11.1 C (12.0 F)32.2 C (90.0 F)3.9 C (39.0 F)
Nov25.6 C (78.1 F)-27.2 C (-17.0 F)n/an/a
Dec18.3 C (64.9 F)-32.8 C (-27.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Spirit Lake by the year they were set 1,464 records at Spirit Lake still stand. 1897 holds the most, with 78. 0204060801893: 211894: 751895: 641896: 711897: 781898: 311899: 651900: 391901: 521902: 191903: 61904: 181953: 291998: 321999: 272000: 502001: 262002: 392003: 182004: 332005: 362006: 302007: 362008: 172009: 272010: 282011: 272012: 392013: 342014: 452015: 192016: 152017: 382018: 322019: 312020: 462021: 342022: 282023: 282024: 302025: 292026: 22189318981903200020052010201520202025
1,464 records at Spirit Lake still stand. 1897 holds the most, with 78.
Standing records at Spirit Lake by the year they were set
Year setStanding records
189321
189475
189564
189671
189778
189831
189965
190039
190152
190219
19036
190418
195329
199832
199927
200050
200126
200239
200318
200433
200536
200630
200736
200817
200927
201028
201127
201239
201334
201445
201519
201615
201738
201832
201931
202046
202134
202228
202328
202430
202529
202622

Wettest Day of Each Month

Sep: 151.9 mm (6.0 in)
Record daily precipitation for each month at Spirit Lake The wettest day on record for each calendar month at Spirit Lake. The most was 151.9 mm (6.0 in) on 11 September 1900. 050100150200 Jan: 33.5 mm (1.3 in), 24 January 2017 Jan Feb: 36.3 mm (1.4 in), 28 February 2012 Feb Mar: 43.7 mm (1.7 in), 25 March 2024 Mar Apr: 60.2 mm (2.4 in), 15 April 2018 Apr May: 87.4 mm (3.4 in), 5 May 2007 May Jun: 115.6 mm (4.6 in), 25 June 1943 Jun Jul: 73.2 mm (2.9 in), 14 July 2011 Jul Aug: 129.0 mm (5.1 in), 18 August 2007 Aug Sep: 151.9 mm (6.0 in), 11 September 1900 Sep Oct: 94.0 mm (3.7 in), 1 October 2021 Oct Nov: 69.9 mm (2.8 in), 26 November 1896 Nov Dec: 33.8 mm (1.3 in), 12 December 2015 Dec
The wettest day on record for each calendar month at Spirit Lake. The most was 151.9 mm (6.0 in) on 11 September 1900.
Record daily precipitation for each month at Spirit Lake
MonthRecord daily precipitation (mm)Date
Jan33.5 mm (1.3 in)24 January 2017
Feb36.3 mm (1.4 in)28 February 2012
Mar43.7 mm (1.7 in)25 March 2024
Apr60.2 mm (2.4 in)15 April 2018
May87.4 mm (3.4 in)5 May 2007
Jun115.6 mm (4.6 in)25 June 1943
Jul73.2 mm (2.9 in)14 July 2011
Aug129.0 mm (5.1 in)18 August 2007
Sep151.9 mm (6.0 in)11 September 1900
Oct94.0 mm (3.7 in)1 October 2021
Nov69.9 mm (2.8 in)26 November 1896
Dec33.8 mm (1.3 in)12 December 2015

Period of Record Coverage

1893 to 2026
Days with data per year at Spirit Lake 42 years of record at Spirit Lake, 1893 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1900, 1901, 1902, 1903, 1904, 1953 and others. 1893: 180 of 365 days1894: 331 of 365 days1895: 324 of 365 days1896: 362 of 366 days1897: 362 of 365 days1898: 356 of 365 days1899: 339 of 365 days1900: 277 of 365 days1901: 273 of 365 days1902: 257 of 365 days1903: 167 of 365 days1904: 247 of 366 days1953: 285 of 365 days1998: 355 of 365 days1999: 356 of 365 days2000: 357 of 366 days2001: 360 of 365 days2002: 360 of 365 days2003: 325 of 365 days2004: 362 of 366 days2005: 355 of 365 days2006: 359 of 365 days2007: 357 of 365 days2008: 351 of 366 days2009: 334 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 364 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 363 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 286 of 365 days1900200020102020
42 years of record at Spirit Lake, 1893 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1900, 1901, 1902, 1903, 1904, 1953 and others.
Days with data per year at Spirit Lake
YearDays with dataShare of yearComplete
189318049%No
189433191%Yes
189532489%No
189636299%Yes
189736299%Yes
189835698%Yes
189933993%Yes
190027776%No
190127375%No
190225770%No
190316746%No
190424767%No
195328578%No
199835597%Yes
199935698%Yes
200035798%Yes
200136099%Yes
200236099%Yes
200332589%No
200436299%Yes
200535597%Yes
200635998%Yes
200735798%Yes
200835196%Yes
200933492%Yes
2010365100%Yes
2011364100%Yes
2012366100%Yes
2013365100%Yes
2014364100%Yes
2015365100%Yes
201636499%Yes
201736399%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628678%No

Latest Records

20
Latest records at Spirit Lake
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Spirit Lake, USdaily high max (Provisional)31.1 C (88.0 F)0.5 C (0.9 F)126 years40 of 100 (Notable)
11 October 2026Spirit Lake, USdaily high min (Provisional)16.7 C (62.1 F)1.7 C (3.1 F)17 years18 of 100 (Routine)
11 October 2026Spirit Lake, USdaily high max (Provisional)32.2 C (90.0 F)1.6 C (2.9 F)11 years15 of 100 (Routine)
7 October 2026Spirit Lake, USdaily high max (Provisional)29.4 C (84.9 F)0.5 C (0.9 F)126 years40 of 100 (Notable)
30 September 2026Spirit Lake, USdaily high min (Tie, Provisional)16.1 C (61.0 F)tie4 years2 of 100 (Routine)
25 September 2026Spirit Lake, USdaily low max (Tie, Provisional)15.0 C (59.0 F)tie132 years10 of 100 (Routine)
22 September 2026Spirit Lake, USdaily low max (Provisional)12.2 C (54.0 F)2.2 C (4.0 F)20 years19 of 100 (Routine)
8 September 2026Spirit Lake, USdaily rain (Provisional)55.9 mm (2.2 in)14.2 mm (0.6 in)20 years23 of 100 (Routine)
6 September 2026Spirit Lake, USdaily high min (Provisional)21.7 C (71.1 F)0.6 C (1.1 F)128 years41 of 100 (Notable)
15 August 2026Spirit Lake, USdaily high min (Tie)19.4 C (66.9 F)tie127 years10 of 100 (Routine)
5 August 2026Spirit Lake, USdaily low max (Tie)21.7 C (71.1 F)tie28 years4 of 100 (Routine)
1 August 2026Spirit Lake, USdaily low max21.7 C (71.1 F)1.6 C (2.9 F)7 years16 of 100 (Routine)
27 July 2026Spirit Lake, USdaily high min24.4 C (75.9 F)1.6 C (2.9 F)3 years14 of 100 (Routine)
15 June 2026Spirit Lake, USdaily low min (Tie)10.6 C (51.1 F)tie27 years4 of 100 (Routine)
9 June 2026Spirit Lake, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)24 years18 of 100 (Routine)
18 May 2026Spirit Lake, USdaily rain23.1 mm (0.9 in)0.5 mm (0.02 in)25 years17 of 100 (Routine)
16 May 2026Spirit Lake, USdaily high max32.8 C (91.0 F)1.1 C (2.0 F)131 years41 of 100 (Notable)
7 May 2026Spirit Lake, USdaily low max (Tie)10.6 C (51.1 F)tie16 years3 of 100 (Routine)
27 April 2026Spirit Lake, USdaily rain47.0 mm (1.9 in)14.7 mm (0.6 in)9 years27 of 100 (Routine)
23 April 2026Spirit Lake, USdaily high min14.4 C (57.9 F)2.7 C (4.9 F)20 years21 of 100 (Routine)

Climate Trend

28 complete years, 1896 to 2025
Annual mean temperature at Spirit Lake as warming stripes, 1896 to 2025 One stripe for each of 28 complete years at Spirit Lake, 1896 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.6 F); red stripes are warmer. The coolest year was 2014, at 6.4 C (43.5 F), and the warmest was 2012, at 10.2 C (50.4 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1896: 7.1 C, -1.0 C from the station mean1897: 7.0 C, -1.2 C from the station mean1898: 7.5 C, -0.6 C from the station mean1998: 9.3 C, +1.2 C from the station mean2000: 7.9 C, -0.2 C from the station mean2001: 8.3 C, +0.2 C from the station mean2002: 8.2 C, +0.1 C from the station mean2004: 8.2 C, 0.0 C from the station mean2005: 9.0 C, +0.8 C from the station mean2006: 9.2 C, +1.1 C from the station mean2007: 8.5 C, +0.4 C from the station mean2008: 6.7 C, -1.4 C from the station mean2010: 7.9 C, -0.2 C from the station mean2011: 8.0 C, -0.1 C from the station mean2012: 10.2 C, +2.1 C from the station mean2013: 7.1 C, -1.0 C from the station mean2014: 6.4 C, -1.7 C from the station mean2015: 8.7 C, +0.6 C from the station mean2016: 9.0 C, +0.9 C from the station mean2017: 8.5 C, +0.4 C from the station mean2018: 6.9 C, -1.2 C from the station mean2019: 6.4 C, -1.7 C from the station mean2020: 8.3 C, +0.1 C from the station mean2021: 8.9 C, +0.7 C from the station mean2022: 7.1 C, -1.0 C from the station mean2023: 8.7 C, +0.6 C from the station mean2024: 9.6 C, +1.5 C from the station mean2025: 8.6 C, +0.5 C from the station mean1896191019201930194019501960197019801990200020102020
One stripe for each of 28 complete years at Spirit Lake, 1896 to 2025. Blue stripes are years cooler than the station's own mean of 8.1 C (46.6 F); red stripes are warmer. The coolest year was 2014, at 6.4 C (43.5 F), and the warmest was 2012, at 10.2 C (50.4 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Spirit Lake as warming stripes, 1896 to 2025
YearAnnual mean temperatureDifference from the station mean
18967.1 C-1.02 C
18977.0 C-1.16 C
18987.5 C-0.62 C
19989.3 C+1.20 C
20007.9 C-0.24 C
20018.3 C+0.20 C
20028.2 C+0.10 C
20048.2 C+0.04 C
20059.0 C+0.84 C
20069.2 C+1.08 C
20078.5 C+0.42 C
20086.7 C-1.42 C
20107.9 C-0.19 C
20118.0 C-0.11 C
201210.2 C+2.08 C
20137.1 C-1.00 C
20146.4 C-1.73 C
20158.7 C+0.61 C
20169.0 C+0.91 C
20178.5 C+0.41 C
20186.9 C-1.24 C
20196.4 C-1.68 C
20208.3 C+0.14 C
20218.9 C+0.74 C
20227.1 C-1.02 C
20238.7 C+0.61 C
20249.6 C+1.50 C
20258.6 C+0.47 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 2026
Yearly extremes at Spirit Lake: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)189436.1 C (97.0 F)42
Coldest night (TNn)-39.4 C (-38.9 F)1899-28.0 C (-18.5 F)42
Wettest day (Rx1day)151.9 mm (6.0 in)190058.6 mm (2.3 in)46
Wettest five days (Rx5day)211.1 mm (8.3 in)200498.3 mm (3.9 in)46
Longest dry spell (CDD)50 days201128 days46

Hottest day (TXx)

Hottest day (TXx) at Spirit Lake by year The hottest day of the year at Spirit Lake, 1893 to 2026. The record is 42.8 C (109.0 F) in 1894, marked on the chart; the median year is 36.1 C (97.0 F). 303540451900192019401960198020002020Record: 42.8 C (109.0 F) in 1894
The hottest day of the year at Spirit Lake, 1893 to 2026. The record is 42.8 C (109.0 F) in 1894, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Spirit Lake by year
YearHottest day (TXx)
189337.8 C (100.0 F)
189442.8 C (109.0 F)
189538.3 C (100.9 F)
189638.3 C (100.9 F)
189738.9 C (102.0 F)
189837.2 C (99.0 F)
189936.7 C (98.1 F)
190036.1 C (97.0 F)
190142.2 C (108.0 F)
190233.9 C (93.0 F)
190331.1 C (88.0 F)
190431.7 C (89.1 F)
1943n/a
1944n/a
1945n/a
195337.2 C (99.0 F)
1954n/a
199833.9 C (93.0 F)
199936.1 C (97.0 F)
200034.4 C (93.9 F)
200134.4 C (93.9 F)
200236.7 C (98.1 F)
200333.3 C (91.9 F)
200436.1 C (97.0 F)
200537.2 C (99.0 F)
200637.8 C (100.0 F)
200735.0 C (95.0 F)
200832.8 C (91.0 F)
200933.3 C (91.9 F)
201033.3 C (91.9 F)
201138.3 C (100.9 F)
201236.7 C (98.1 F)
201336.1 C (97.0 F)
201431.7 C (89.1 F)
201534.4 C (93.9 F)
201633.9 C (93.0 F)
201733.3 C (91.9 F)
201837.8 C (100.0 F)
201934.4 C (93.9 F)
202035.6 C (96.1 F)
202135.6 C (96.1 F)
202236.7 C (98.1 F)
202337.2 C (99.0 F)
202434.4 C (93.9 F)
202536.7 C (98.1 F)
202635.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Spirit Lake by year The coldest night of the year at Spirit Lake, 1893 to 2026. The record is -39.4 C (-38.9 F) in 1899, marked on the chart; the median year is -28.0 C (-18.5 F). -40-35-30-25-201900192019401960198020002020Record: -39.4 C (-38.9 F) in 1899
The coldest night of the year at Spirit Lake, 1893 to 2026. The record is -39.4 C (-38.9 F) in 1899, marked on the chart; the median year is -28.0 C (-18.5 F).
Coldest night (TNn) at Spirit Lake by year
YearColdest night (TNn)
1893-31.1 C (-24.0 F)
1894-34.4 C (-29.9 F)
1895-30.0 C (-22.0 F)
1896-25.6 C (-14.1 F)
1897-32.8 C (-27.0 F)
1898-31.1 C (-24.0 F)
1899-39.4 C (-38.9 F)
1900-28.3 C (-18.9 F)
1901-32.8 C (-27.0 F)
1902-30.6 C (-23.1 F)
1903-30.6 C (-23.1 F)
1904-33.3 C (-27.9 F)
1943n/a
1944n/a
1945n/a
1953-21.1 C (-6.0 F)
1954n/a
1998-24.4 C (-11.9 F)
1999-28.9 C (-20.0 F)
2000-27.8 C (-18.0 F)
2001-27.2 C (-17.0 F)
2002-22.8 C (-9.0 F)
2003-25.6 C (-14.1 F)
2004-27.8 C (-18.0 F)
2005-26.1 C (-15.0 F)
2006-25.0 C (-13.0 F)
2007-27.2 C (-17.0 F)
2008-28.9 C (-20.0 F)
2009-31.1 C (-24.0 F)
2010-33.9 C (-29.0 F)
2011-27.8 C (-18.0 F)
2012-26.1 C (-15.0 F)
2013-26.1 C (-15.0 F)
2014-29.4 C (-20.9 F)
2015-26.1 C (-15.0 F)
2016-32.8 C (-27.0 F)
2017-31.1 C (-24.0 F)
2018-32.2 C (-26.0 F)
2019-33.3 C (-27.9 F)
2020-27.8 C (-18.0 F)
2021-32.8 C (-27.0 F)
2022-27.8 C (-18.0 F)
2023-22.8 C (-9.0 F)
2024-27.8 C (-18.0 F)
2025-27.2 C (-17.0 F)
2026-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Spirit Lake by year The wettest day of the year at Spirit Lake, 1893 to 2026. The record is 151.9 mm (6.0 in) in 1900, marked on the chart; the median year is 58.6 mm (2.3 in). 0501001502001900192019401960198020002020Record: 151.9 mm (6.0 in) in 1900
The wettest day of the year at Spirit Lake, 1893 to 2026. The record is 151.9 mm (6.0 in) in 1900, marked on the chart; the median year is 58.6 mm (2.3 in).
Wettest day (Rx1day) at Spirit Lake by year
YearWettest day (Rx1day)
189351.1 mm (2.0 in)
189447.0 mm (1.9 in)
189553.8 mm (2.1 in)
189669.9 mm (2.8 in)
189745.0 mm (1.8 in)
189888.9 mm (3.5 in)
189999.8 mm (3.9 in)
1900151.9 mm (6.0 in)
190155.9 mm (2.2 in)
190240.6 mm (1.6 in)
190378.7 mm (3.1 in)
190435.6 mm (1.4 in)
1943115.6 mm (4.6 in)
194448.5 mm (1.9 in)
194510.2 mm (0.4 in)
195371.1 mm (2.8 in)
195494.0 mm (3.7 in)
199855.4 mm (2.2 in)
199931.5 mm (1.2 in)
200057.2 mm (2.3 in)
200148.0 mm (1.9 in)
200241.7 mm (1.6 in)
200333.5 mm (1.3 in)
2004100.8 mm (4.0 in)
200585.3 mm (3.4 in)
200697.3 mm (3.8 in)
2007129.0 mm (5.1 in)
200838.6 mm (1.5 in)
200959.9 mm (2.4 in)
201053.6 mm (2.1 in)
201173.2 mm (2.9 in)
201249.0 mm (1.9 in)
201337.6 mm (1.5 in)
201472.1 mm (2.8 in)
201545.7 mm (1.8 in)
201692.5 mm (3.6 in)
2017127.0 mm (5.0 in)
201897.8 mm (3.9 in)
201950.3 mm (2.0 in)
202056.1 mm (2.2 in)
202194.0 mm (3.7 in)
202263.5 mm (2.5 in)
202372.6 mm (2.9 in)
2024110.7 mm (4.4 in)
202587.9 mm (3.5 in)
202655.9 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Spirit Lake by year The wettest five days of the year at Spirit Lake, 1893 to 2026. The record is 211.1 mm (8.3 in) in 2004, marked on the chart; the median year is 98.3 mm (3.9 in). 0501001502002501900192019401960198020002020Record: 211.1 mm (8.3 in) in 2004
The wettest five days of the year at Spirit Lake, 1893 to 2026. The record is 211.1 mm (8.3 in) in 2004, marked on the chart; the median year is 98.3 mm (3.9 in).
Wettest five days (Rx5day) at Spirit Lake by year
YearWettest five days (Rx5day)
189366.3 mm (2.6 in)
189467.6 mm (2.7 in)
189534.3 mm (1.4 in)
189696.9 mm (3.8 in)
189756.2 mm (2.2 in)
189888.9 mm (3.5 in)
1899145.1 mm (5.7 in)
1900187.2 mm (7.4 in)
1901119.4 mm (4.7 in)
190275.1 mm (3.0 in)
1903181.8 mm (7.2 in)
190448.3 mm (1.9 in)
1943147.6 mm (5.8 in)
194483.8 mm (3.3 in)
194512.7 mm (0.5 in)
1953127.0 mm (5.0 in)
195440.6 mm (1.6 in)
199868.3 mm (2.7 in)
199963.8 mm (2.5 in)
200099.6 mm (3.9 in)
200178.2 mm (3.1 in)
2002118.1 mm (4.6 in)
200364.3 mm (2.5 in)
2004211.1 mm (8.3 in)
2005103.6 mm (4.1 in)
2006121.9 mm (4.8 in)
2007199.6 mm (7.9 in)
200862.2 mm (2.4 in)
200977.7 mm (3.1 in)
2010106.9 mm (4.2 in)
2011184.8 mm (7.3 in)
201273.1 mm (2.9 in)
201347.3 mm (1.9 in)
2014131.1 mm (5.2 in)
2015101.3 mm (4.0 in)
2016107.2 mm (4.2 in)
2017173.4 mm (6.8 in)
2018129.2 mm (5.1 in)
2019117.1 mm (4.6 in)
202075.4 mm (3.0 in)
202196.5 mm (3.8 in)
2022150.6 mm (5.9 in)
2023110.7 mm (4.4 in)
2024191.5 mm (7.5 in)
202590.2 mm (3.6 in)
202692.7 mm (3.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Spirit Lake by year The longest dry spell of the year at Spirit Lake, 1893 to 2026. The record is 50 days in 2011, marked on the chart; the median year is 28 days. 10203040501900192019401960198020002020Record: 50 days in 2011
The longest dry spell of the year at Spirit Lake, 1893 to 2026. The record is 50 days in 2011, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Spirit Lake by year
YearLongest dry spell (CDD)
189319 days
189420 days
189528 days
189630 days
189738 days
189826 days
189931 days
190020 days
190124 days
190224 days
190326 days
190424 days
194333 days
194421 days
194510 days
195330 days
195410 days
199835 days
199936 days
200024 days
200135 days
200236 days
200326 days
200424 days
200538 days
200622 days
200730 days
200824 days
200927 days
201027 days
201150 days
201234 days
201328 days
201429 days
201529 days
201622 days
201732 days
201824 days
201926 days
202028 days
202119 days
202226 days
202347 days
202436 days
202541 days
202640 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

28 years with a frost

Across 28 years with a frost, the median last spring frost at Spirit Lake falls on 28 April and the median first autumn frost on 13 October, which leaves a median of 171 days between them.

Fitted over all years, the growing season changes by +2.6 days per decade at this station.

Frost dates and growing season at Spirit Lake
MeasureMedian, all yearsEarliest periodRecent period (1896 to 2025)Recent against earliestFitted trend
Last spring frost28 Apriln/a28 Apriln/a-1.1 days per decade
First autumn frost13 Octobern/a13 Octobern/a+1.4 days per decade
Growing days171 daysn/a171 daysn/a+2.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

33 years, 1896 to 2025

A day with at least 68.9 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 153.6 mm (6.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Spirit Lake: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.9 mm (2.7 in)
5 years95.0 mm (3.7 in)
10 years110.8 mm (4.4 in)
25 years129.2 mm (5.1 in)
50 years141.8 mm (5.6 in)Longer than the 33 years of record
100 years153.6 mm (6.0 in)Longer than the 33 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 33 years of values from 1896 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 129.0 mm (5.1 in) in 2007; 127.0 mm (5.0 in) in 2017; 115.6 mm (4.6 in) in 1943.

Download the Data

  • Data for Spirit Lake standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Spirit Lake threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).